1021240522151 has 24 divisors (see below), whose sum is σ = 1080051483264. Its totient is φ = 965340905760.

The previous prime is 1021240522139. The next prime is 1021240522157. The reversal of 1021240522151 is 1512250421201.

It is a happy number.

It is not a de Polignac number, because 1021240522151 - 2⁶ = 1021240522087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021240522151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021240522157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9128966 + ... + 9240156.

It is an arithmetic number, because the mean of its divisors is an integer number (45002145136).

Almost surely, 2^{1021240522151} is an apocalyptic number.

1021240522151 is a deficient number, since it is larger than the sum of its proper divisors (58810961113).

1021240522151 is a wasteful number, since it uses less digits than its factorization.

1021240522151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111479 (or 111450 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 1021240522151 its reverse (1512250421201), we get a palindrome (2533490943352).

The spelling of 1021240522151 in words is "one trillion, twenty-one billion, two hundred forty million, five hundred twenty-two thousand, one hundred fifty-one".